Ikrama bin 'Ammar عكرمة بن عمار العجلي أبو عمار اليمامي · The Book of Forgetfulness (In Prayer)

"The Messenger of Allah (ﷺ) said: "Whoever sends salah upon me once, Allah (SWT) will send salah upon him tenfold, and will erase ten sins from him, and will raise him ten degrees in status."

"The Messenger of Allah (ﷺ) used to pray eleven rak'ahs, making it odd (witr) by one between the time when he finished 'Isha and dawn, and he would prostrate for as long as it takes one of you to recite fifty verses before raising his head."