What is Faith?

Worship is more than a set of rituals The Prophet was addressing his followers one day when he saw a man standing in the sun, praying. He asked about this man and was told that he was Abu Israel Ansari. He was fasting and had made a vow that neither would he go into the shade nor would he sit down; he would remain standing in the scorching sun. Furthermore, he would not talk to anyone, but would maintain a strict silence. The Prophet’s response to this was to send him word that he should talk, go into the shade, be seated and complete his fast in usual way. (AL-QURTUBI, TAFSIR)