Sayyidina Anas (RA) ibn Malik reported that a man of the ansar used to lead them in salah at the mosque Quba. When he was about to recite to them any surah in salah (after al-Fatihah), he would begin with Surah al-Ikhlas, and when he had finished with it, he would recite some other surah to them. This, he did in every rakaah. His friends said to him, ‘You recite this surah but do not feel that it is enough till you recite another surah So either recite it or omit it and recite another surah (but not both) He said, “I will not omit it If you like that I be your imam with that I will do that. But if you dislike it tben I will leave you “ They found him to be the best of them and disliked that anyone else should, lead them in salah. So, when the Prophet (SAW) came to them, they informed him of it. He said, “O man! what prevents you from observing what your friends ask you to do? And what brings you to recite this surah in every raka’ah”? He submitted, “O Messenger of Allah (SAW) ! I love it.” Allah’s Messenger (SAW) IiI said, “Your love for it wil indeed admit you to Paradaise.”
[Bukhari 3775,Ahmed 12435]