‏الصلاة : Hadeeth No:1116 Abdullah b. Umar reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) saw spittle on the wall towards Qibla, and scratched it away and then turning to the people said: When any one of you prays, he must not spit in front of him, for Allaah is in front of him when he is engaged in prayer....

‏الطهارة : Hadeeth No:553 Jabir reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) forbade to urinate in stagnant water....