Abu Salamah bin Abd al-Rahman narrates from Sayyidah Aishah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) had a mat which he (peace and blessings be upon him) would make into a compartment in the mosque at night and pray in it. The people began praying along with his (peace and blessings be upon him) prayer, and he (peace and blessings be upon him) would spread this mat out during the day. The people began to come night after night. He (peace and blessings be upon him) said: "O people! Take upon yourselves only as many deeds as you are able, for Allah does not grow weary (of rewarding) until you grow weary (of deeds), and the deeds most beloved to Allah are those that are done consistently, even if they are few." When the family of Muhammad (peace and blessings be upon him) began a deed, they would keep to it consistently.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5237