Sahih Muslim Book - 52, Hadith - 7355

وَقَالَ سَالِمُ بْنُ عَبْدِ اللَّهِ سَمِعْتُ عَبْدَ اللَّهِ بْنَ عُمَرَ يَقُولُ انْطَلَقَ بَعْدَ ذَلِكَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- وَأُبَىُّ بْنُ كَعْبٍ الأَنْصَارِىُّ إِلَى النَّخْلِ الَّتِى فِيهَا ابْنُ صَيَّادٍ حَتَّى إِذَا دَخَلَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- النَّخْلَ طَفِقَ يَتَّقِى بِجُذُوعِ النَّخْلِ وَهُوَ يَخْتِلُ أَنْ يَسْمَعَ مِنِ ابْنِ صَيَّادٍ شَيْئًا قَبْلَ أَنْ يَرَاهُ ابْنُ صَيَّادٍ فَرَآهُ رَسُولُ اللَّهِ -صلى الله عليه وسلم- وَهُوَ مُضْطَجِعٌ عَلَى فِرَاشٍ فِى قَطِيفَةٍ لَهُ فِيهَا زَمْزَمَةٌ فَرَأَتْ أُمُّ ابْنِ صَيَّادٍ رَسُولَ اللَّهِ -صلى الله عليه وسلم- وَهُوَ يَتَّقِى بِجُذُوعِ النَّخْلِ فَقَالَتْ لاِبْنِ صَيَّادٍ يَا صَافِ - وَهُوَ اسْمُ ابْنِ صَيَّادٍ - هَذَا مُحَمَّدٌ. فَثَارَ ابْنُ صَيَّادٍ. فَقَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « لَوْ تَرَكَتْهُ بَيَّنَ ».

'Abdullah bin 'Umar (in continuation of the previous Hadith) said: "After that the Messenger of Allah (s.a.w) and Ubayy bin Ka'b Al-Ansari went to the palm trees where Ibn Sayyad was. When the Messenger of Allah (s.a.w) entered the palm trees, he hid himself behind the trunks of the trees, hoping to hear something from Ibn Sayyad before Ibn Sayyad saw him. The Messenger of Allah (s.a.w) saw him lying on a bed under a blanket, murmuring something. But the mother of Ibn Sayyad saw the Messenger of Allah (s.a.w) hiding among the trunks of the palm trees, and said to Ibn Sayyad: 'O Saf' - which was the name of Ibn Sayyad - 'here is Muhammad!' Ibn Sayyad jumped up and the Messenger of Allah (s.a.w) said: 'If she had left him the matter would have become clear."'