Read all Ahadith in foods (kitab al-at'imah) by sunan abu dawood

Abdullah bin Umar reported the Prophet صلی ‌اللہ ‌علیہ ‌وسلم as sayings: when one of you is invited for a wedding feast, he must attend it.

The tradition mentioned above has also been transmitted by Ibn Umar to the same effect through a different chain of narrators. This version has the additional words: If he is not fasting, he should eat, and if he is fasting, he should leave it.

Ibn Umar reported the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم as saying: if one of you invites his brother, he should accept (the invitation), whether it is a wedding feast or something of that nature.

The tradition mentioned above has also been transmitted by Nafi to the same effect through the chain of narrators as mentioned in Ayyub.

Jabir reported the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم as sayings: when one of you is invited to a meal, he must accept. If he wishes he may eat, but if he wishes (to leave), he may leave.

Narrated Abdullah ibn Umar: The Prophet صلی ‌اللہ ‌علیہ ‌وسلم said: He who does not accept an invitation which he receives has disobeyed Allah and His Messenger of, and he who enters without invitation enters as a thief and goes out as a raider. Abu Dawud said: Aban bin Tariq is unknown.

Abu Hurairah said: The worst kind of food is that at a wedding feast to which the rich are invited and from which the poor are left out. If anyone does not attend the feast to which he was invited, he has disobeyed Allah and His Messenger (may peace upon him).

Thabit said: The marriage of Zainab daughter of Jahsh was mentioned before Anas bin Malik. He said: I did not see that the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم held such a wedding feast for any of his wives as he did for her. He held a wedding feast with a sheep.

Narrated Anas ibn Malik: The Prophet صلی ‌اللہ ‌علیہ ‌وسلم held a wedding feast) for Safiyyah with meal and dates.

Narrated Zubayr ibn Uthman: The Prophet صلی ‌اللہ ‌علیہ ‌وسلم said: The wedding feast on the first day is a duty, that on the second is a good practice, but that on the third day is to make men hear of it and show it to them. Qatadah said: A man told me that Saeed ibn al-Musayyab was invited (to a wedding feast on the first day and he accepted it. He was again invited on the second day, and he accepted. When he was invited on the third day, he did not accept; he said: They are the people who make men hear of it and show it to them.