Praise be to Allaah.
Firstly:
The basic principle is that the Muslim is to be thought of in
the best terms and one should regard him in the most positive light in
everything that he says and does, and not think negatively of him or suspect
him, because suspicion is the falsest of speech. This applies unless he
actually does something that is contrary to that. The Muslim is the brother
of his fellow Muslim; he should love for him what he loves for himself of
good, and hate for him what he hates for himself of bad. If a Muslim offers
you food or drink, the basic principle is that you should think positively
of him unless you clearly see something to the contrary. No attention should
be paid to waswaas (devilish whispers or notions that the Shaytaan may put
in one’s mind) or doubts that are not based on sound proof.
Al-Bukhaari (5144) and Muslim (2563, 4917) narrated from Abu
Hurayrah that the Messenger of Allah (blessings and peace of Allah be upon
him) said: “Beware of suspicion, for suspicion is the falsest of speech. Do
not seek out one another’s faults; do not spy on one another; do not compete
with one another; do not envy one another; do not hate one another; do not
turn away from one another. Be, O slaves of Allah, brothers.”
In ‘Awn al-Ma‘bood (9/2195-2196) it says:
“Beware of suspicion” means: beware of following suspicion or
beware of negative thinking, for suspicion is an accusation that comes to
mind without any evidence. End quote.
Al-Bayhaqi narrated in ash-Shu‘ab (8344) that Ja‘far
ibn Muhammad said: If you hear something about your brother that you
dislike, then look for excuses for him, from one to seventy excuses; if you
find an excuse for him (all well and good), otherwise say: Perhaps he has an
excuse that I do not know of.
Al-‘Allaamah Ibn Baaz (may Allah have mercy on him) said:
What is prescribed for the believer is to respect his brother
if he offers an excuse to him, to accept his apology if possible, and to
think positively of him as much as possible, striving to keep hearts free of
resentment and aiming to bring about unity and co-operation in doing good.
It was narrated from ‘Umar (may Allah be pleased with him) that he said: Do
not think badly of any word uttered by your brother when you can find a good
interpretation for it.
End quote from Majmoo‘ Fataawa Ibn Baaz, 26/365
So eat and drink from what your brother offers you, and do
not pay any attention to waswaas and suspicion; do not think badly of him
unless you see clear proof to the contrary or you think it most likely that
that is the case, on the basis of corroborating evidence that you say you
have, if there is a reason to be cautious.
As for mere waswaas and suspicion, there is no doubt that
this is due to lack of certain faith and following the troubles that the
Shaytaan tries to stir up among the believers.
Secondly:
Certainty (yaqeen) in general means basing one’s view on
clear evidence with regard to whatever man may be faced with of academic or
practical issues, and casting aside doubts and speculation. Hence the fuqaha’ (jurists) said the famous words: “Certainty cannot be dispelled by doubt.”
It says in al-Mawsoo‘ah al-Fiqhiyyah (45/287):
Yaqeen (certainty) from a linguistic point of view means
having knowledge, dispelling doubt, understanding a matter as it is; it is the
opposite of doubt. One will attain certainty about a thing when it is proven
and becomes clear.
Yaqeen (certainty) according to the scholars means
reassurance in the heart that something did or did not happen.
Thirdly:
With regard to the report of the poisoned sheep, there is no
proof that the Prophet (blessings and peace of Allah be upon him) carried on
eating from it after he realised that it was poisoned. The reports narrated
from him indicate the contrary.
Abu Dawood (4512) narrated that Abu Salamah said: The
Messenger of Allah (blessings and peace of Allah be upon him) used to accept
gifts but he did not eat (that which was given in) charity. And he added: A
Jewish woman in Khaybar gave him a roasted sheep that she had poisoned, and
the Messenger of Allaah (blessings and peace of Allah be upon him) ate from
it as did the people. He said: “Lift up your hands (i.e., stop eating), for
it has told me that it is poisoned.”
Classed as saheeh (authentic) by al-Albaani. See also al-Bukhaari, 3169 and Muslim, 2190
Ar-Daarimi (8) narrated: A Jewish woman from Khaybar gave him
a roasted sheep and he ate from it, as did Bishr ibn al-Bara’, then the
Prophet (blessings and peace of Allah be upon him) stopped eating, then he
said: “It has told me that it is poisoned.”
According to al-Bazzaar (6675) he said: “One of its legs has
told me that it is poisoned.” So the Messenger of Allah (blessings and peace
of Allah be upon him) stopped eating, as did those who were with him.
According to Ibn Ishaaq: When she placed it in front of him,
he picked up the foreleg and took a bite from it, but he could not swallow
it.
Al-Bidaayah wa’n-Nihaayah,
4/240; see also: Dalaa’il an-Nubuwwah, 4/353
For more information please see the answer to questions no.
112196 and
130499
And Allah knows best.