 Ahmad ibn Yasir, the great companion, that he was once seen praying a short prayer. It was a short prayer. It did not take very long and his companions asked him and he said, did you see me falling short on any of the obligations, the rights of the prayer? They said, no, you did it properly but it was a bit short. He said, I wanted to outdo the shaitan affecting me. I wanted to get, in other words, to have full concentration, better to have a shorter prayer with excellent concentration, with excellent quality, then a long prayer where the mind is just wandering this way and this way and the other.