It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said to Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him): Allah Almighty has commanded me to recite Surah Al-Bayyina to you. He said: O Messenger of Allah! Did Allah Almighty mention my name to you? The Prophet (peace and blessings be upon him) replied: Yes. Upon hearing this, Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) began to weep (out of joy).

It is narrated from Sayyiduna Abu Hubah Badri, may Allah be pleased with him, he says: When Surah Bayyinah was revealed, Jibreel (peace be upon him) said: O Muhammad! Your Lord has commanded you to recite this Surah to Sayyiduna Ubayy bin Ka'b, may Allah be pleased with him. So you (peace and blessings be upon him) said: O Ubayy! My Lord has commanded me to teach you such-and-such Surah. Upon this, Sayyiduna Ubayy began to weep and said: Was my mention made there? You (peace and blessings be upon him) said: Yes.