Musannaf Ibn Abi Shaybah 36827 — Reports on the description

Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: I asked Ka'b: "What is Sidrat al-Muntaha?" Ka'b said: "It is a tree where the knowledge of the angels ends. There they find the command of Allah, and their knowledge does not go beyond it." I asked him about Jannat al-Ma'wa. Ka'b said: "It is a garden in which there are green birds, in which the souls of the martyrs go."