Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: The Messenger of Allah (peace and blessings be upon him) prayed in an open stretch of land, and there was nothing (no sutrah) in front of him (peace and blessings be upon him).
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12674
Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: The share of the Prophet (peace and blessings be upon him) which Allah granted him was one fifth of the khumus (a fifth of the fifth).
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12675
It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) used to pray witr with three rak'ahs.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12676