Narrated Ali ibn Abu Talib: Abu Dawud said: Al-Hasan ibn Ali traced this tradition back to the Prophet ﷺ: When people are passing by, it is enough if one of them gives a salutation on their behalf, and that it is enough for those who are sitting if one of them replies.
Related hadith on this topic
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
Some scholars have declared this narration to be authentic.
For details, see: (al-Sahihah, Hadith: 1148, 1412)
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 5210
Shaykh Abdus Salam Bhutvi
Takhrij:
«صحيح»,
[تحفة الاشراف : 429/7],
[بلوغ المرام : 1243],
[ابي داود : 5210]
Benefits:
➊ If one person from a group conveys the greeting of salam, then the obligation is fulfilled on behalf of all; otherwise, all will be sinful. The same ruling applies to responding to the greeting.
If one person conveys the salam, it is sufficient. From this, it is understood that if everyone gives the salam, it is better, and similarly, if all respond, that is superior.
Source: Sharh Bulugh al-Maram min Adillat al-Ahkam, Kitab al-Jami', Page: 42
Shaykh Safi ur-Rahman Mubarakpuri
Takhrij:
«أخرجه أبوداود، الأدب، باب ما جاء في رد واحد عن الجماعة، حديث:5210، وأحمد: لم أجده، والبيهقي:9 /49 «الطبراني في الكبير:2 /82، 83، حديث:2730 وسنده حسن».»©Explanation:
➊ From this hadith, it is understood that offering greetings of peace (salam) and responding to it is a communal obligation (fard kifayah).
➋ If one individual from a group offers salam or responds to it, then it is considered as fulfillment on behalf of all.
Source: Bulugh al-Maram: Commentary by Safiur Rahman Mubarakpuri, Page: 1243