It is narrated from Sayyiduna Mu'awiyah bin Qurrah (may Allah be pleased with them) that my respected father said to me: My son! If you are in a gathering from which you hope for goodness, and then due to some need you have to leave early, then leave by saying «السلام علیکم». In this way, you will share in the goodness that reaches the people of the gathering. And any people who sit in a gathering and part from each other without mentioning Allah, they are like those who got up from a dead donkey.
Hadith Referenceالادب المفرد / كتاب السلام / 1009
Hadith Gradingالألبانی:صحيح موقوف
Hadith Takhrij«صحيح موقوف : سنن أبى داؤد ، الأدب ، ح : 4855 و جامع الترمذي ، الدعوات ، ح : 3380»
Explanation & Benefits
Shaykh Maulana Usman Muneeb
Benefits and Issues: ➊ From this, it is understood that participating in a good gathering is a source of reward, and if a person, while observing the aforementioned etiquettes, leaves due to necessity, he will continue to receive the same reward. ➋ The statement regarding remembrance (dhikr) is also authentically reported as marfu‘ (attributed to the Prophet sallallahu alayhi wa sallam). In one narration, it is stated that any gathering in which Allah is not remembered and blessings are not sent upon the Prophet sallallahu alayhi wa sallam, then that sitting will become a cause of regret and distress for the people of the gathering. If Allah wills, He may punish them, and if He wills, He may forgive them. (Sunan al-Tirmidhi, Hadith: 3440; Silsilat al-Ahadith al-Sahihah, Hadith: 74)
Source: Fadlullah al-Ahad: Urdu Commentary on al-Adab al-Mufrad, Page: 1009