Sahih Muslim Book - 1, Hadith - 506

حَدَّثَنَا أَبُو كَامِلٍ الْجَحْدَرِيُّ حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ حَدَّثَنَا التَّيْمِيُّ عَنْ أَبِي عُثْمَانَ عَنْ قَبِيصَةَ بْنِ الْمُخَارِقِ وَزُهَيْرِ بْنِ عَمْرٍو قَالَا لَمَّا نَزَلَتْ { وَأَنْذِرْ عَشِيرَتَكَ الْأَقْرَبِينَ } قَالَ انْطَلَقَ نَبِيُّ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِلَى رَضْمَةٍ مِنْ جَبَلٍ فَعَلَا أَعْلَاهَا حَجَرًا ثُمَّ نَادَى يَا بَنِي عَبْدِ مَنَافَاهْ إِنِّي نَذِيرٌ إِنَّمَا مَثَلِي وَمَثَلُكُمْ كَمَثَلِ رَجُلٍ رَأَى الْعَدُوَّ فَانْطَلَقَ يَرْبَأُ أَهْلَهُ فَخَشِيَ أَنْ يَسْبِقُوهُ فَجَعَلَ يَهْتِفُ يَا صَبَاحَاهْ.

It was narrated from At-Taimi from Abu 'Uthman, from Qabisah bin Al-Mukhariq and Zuhair bin 'Amr saying: "When the following was revealed: 'And warn your tribe of near kindred', the Prophet of Allah (s.a.w) went to some large rocks by a mountain, and climbed on top of the largest one, then he called out: 'O Banu 'Abd Manafah! I am a warner. The likeness of me and you is that of a man who sees the enemy so he goes to guard his family, but he fears that they may get there before him, so he calls out: 'Ya Sabahah (Be on your guard)!"'