‏الطهارة : Hadeeth No:463 Jabir b. 'Abdullah reported that he heard the Messenger of Allaah (sallAllaahu alayhi wa sallam) say: When anyone wipes himself with pebbles (after answering the call of nature) he should do this odd number of times....

‏الصلاة : Hadeeth No:1586 'Abdullah b. Shaqiq reported: I fell ill in Persia and therefore, prayed in a sitting posture, and I asked 'A'isha about it and she said: The Messenger of Allaah (sallAllaahu alayhi wa sallam) prayed for a long time in the night sitting....