One who calls the adhan at night: does he repeat it or not?

Al-Hasan said: Sayyiduna Bilal (may Allah be pleased with him) once called the adhan at night. The Prophet (peace and blessings be upon him) ordered him to go and announce: "The servant fell asleep!" He went back and announced: "The servant fell asleep," while reciting: "Would that Bilal's mother had never given birth to him, and would that his forehead had been soaked with blood." The narrator said: It has also reached us that the Prophet (peace and blessings be upon him) ordered him to repeat the adhan.

Nafi' said: Sayyiduna Umar (may Allah be pleased with him) had a mu'adhdhin named Masruh. He called the adhan before Fajr, so Sayyiduna Umar ordered him to call the adhan again.

Abu Musa said: Those people who used to call the Fajr adhan during the night were mentioned in the presence of al-Hasan. He said: "They are idle non-Arab louts; they pray only with the iqamah. Had Sayyiduna Umar come across them, he would have beaten them painfully, or struck them on their heads."