‏الصلاة : Hadeeth No:916 Abu Sa'id al-Khudri reported: The noon prayer would start and one would go to al-Baqi' and after having relieved himself he would perform ablution and then come, while the Messenger of Allaah (sallAllaahu alayhi wa sallam) would be in the first rak'ah, because he would prolong it so much....

‏البيوع : Hadeeth No:3847 This hadith has been narrated on the authority of Abu Sa'id al-Khudri through another chain of transmitters....