Sahih Muslim Book - 15, Hadith - 3103

حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَخْبَرَنَا وَكِيعٌ حَدَّثَنَا سُفْيَانُ عَنْ مُحَمَّدِ بْنِ عُقْبَةَ عَنْ كُرَيْبٍ عَنْ أُسَامَةَ بْنِ زَيْدٍ أَنَّ رَسُولَ اللَّهِ -صلى الله عليه وسلم- لَمَّا أَتَى النَّقْبَ الَّذِى يَنْزِلُهُ الأُمَرَاءُ نَزَلَ فَبَالَ - وَلَمْ يَقُلْ أَهْرَاقَ - ثُمَّ دَعَا بِوَضُوءٍ فَتَوَضَّأَ وُضُوءًا خَفِيفًا فَقُلْتُ يَا رَسُولَ اللَّهِ الصَّلاَةَ. فَقَالَ « الصَّلاَةُ أَمَامَكَ ».

It was narrated from Usamah bin Zaid that when the Messenger of Allah (SAW) came to the mountain pass in which the leaders used to halt, he dismounted and urinated – and did not say: he passed water. Then he called for water for Wudu and performed a light Wudu. I said: “O Messenger of Allah, the prayer.” He said: “The prayer is still ahead of you.”