Ma'di Karib says: We went to Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) and requested him to recite to us Surah {طسم}, which has two hundred verses. He said: I do not remember this Surah, but you should go to Sayyiduna Khabbab bin Aratt (may Allah be pleased with him), for he learned this Surah from the Messenger of Allah (peace and blessings be upon him). So we went to Sayyiduna Khabbab (may Allah be pleased with him) and he recited this Surah to us.