Sahih Bukhari | Volume 7 | Hadith Number 752
Narrated by 'Aisha
The Prophet used to construct a loom with a Hasir at night m order to pray therein, and during the day he used to spread it out and sit on it. The people started coming to the Prophet at night to offer the prayer behind him When their number increased, the Prophet faced them and said. O people! Do only those good deeds which you can do, for Allah does not get tired (of giving reward) till you get tired, and the best deeds to Allah are the incessant ones though they were few."