1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Hakam from al-Hassan ibn Hamza from his grand father from abu Hamza al-Thumali from Ali ibn al-Husayn عليه السلام who has said the following: “The Messenger of Allah at the end of his sermon would say, ‘Tuba (a tree in paradise) is for those whose moral behavior is polite, whose consciences are clean, whose privacy as well as public matters are all well, who give the excess in their properties in charity, who hold back their unnecessary words and yield to justice for people against their own souls.’”