عَنْ سَلَمَةَ بْنِ نُبَيْطٍ قَالَ كَانَ أَبِي وَجَدِّي وَعَمِّي مَعَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: أَخْبَرَنِي أَبِي قَالَ: رَأَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَخْطُبُ عَشِيَّةَ عَرَفَةَ عَلَى جَمَلٍ أَحْمَرَ، قَالَ سَلَمَةُ: أَوْصَانِي أَبِي بِصَلَاةِ السَّحَرِ، قُلْتُ: يَا أَبَتِ! إِنِّي لَا أُطِيقُهَا، قَالَ: فَانْظُرِ الرَّكْعَتَيْنِ قَبْلَ الْفَجْرِ فَلَا تَدَعَنَّهُمَا، وَلَا تَشْخَصْ فِي الْفِتْنَةِ
Salamah bin Nabit says: My father, grandfather, and uncle were with the Prophet Muhammad (peace and blessings be upon him). My father said: I saw the Prophet Muhammad (peace and blessings be upon him) delivering a sermon on the day of Arafah in the afternoon, riding a red camel. Then my father instructed me to perform the Tahajjud prayer, but I said: Father! I do not have enough strength for it. Upon hearing this, he said: Then at least be mindful of the two rak‘ahs before Fajr and never abandon them, and do not expose yourself during times of tribulation.