Narrated Jarir:
When I gave the pledge of allegiance to Allah's Apostle and he stipulated that I should give good advice to every Muslim.
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ زِيَادِ بْنِ عِلاَقَةَ، قَالَ سَمِعْتُ جَرِيرًا ـ رضى الله عنه ـ يَقُولُ بَايَعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَاشْتَرَطَ عَلَىَّ وَالنُّصْحِ لِكُلِّ مُسْلِمٍ.
• Sahih al-Bukhari, 2714
• Sahih al-Bukhari, Vol. 3, Book of Conditions, Hadith 875
• Sahih al-Bukhari, Book of Conditions, Hadith 875