Ali ibn al-Hasan, from Ismail ibn Mihran, from al-Hasan ibn al-Hasan al-Marwazi, from Yunus ibn Abd al-Rahman, from al-Ja’fari, that he heard the Abd al Saleh عليه السلام (Righteous Servant of Allah سبحانه وتعالى), peace be upon him, say: Imam al-Kadhim عليه السلام said: “On the night of the twenty-first and the twenty-third (of Month of Ramadan), there are one hundred rak’ahs. In each rak’ah ‘Qul huwa Allahu Ahad’ (Surah Ikhlas) is to be recited ten times.”