Hadith 1250
Narrated Umm Habibah: The Prophet ﷺ as saying: If anyone prays in a day and a night twelve rak'ahs voluntarily (supererogatory prayer), a house will be built from him in Paradise on account of these (rak'ahs).
Hadith 1810
Narrated Abu Razin: A man of Banu Amir said: Messenger of Allah, my father is very old, he cannot perform hajj and Umrah himself nor can be ride on a mount. He said: Perform hajj and Umrah on behalf of your father.
Hadith 2448
Abdullah bin 'And (bin al-As) said: The Messenger of Allah ﷺ said to me: The fast most liked by Allah is the one observed by Dawud (David), and the prayer dearer to Allah is the one offered by Dawud (David): he would sleep half the night, and stand (in prayer) one-third of it, and sleep one-sixth of it. He would go without fasting one day, and fast the other day.