Muwatta Malik 1638
موطأ مالك#1638HasanYahya related to me from Malik that Yahya ibn Said said, "I have heard that by his good character a man can reach the degree of the one who stands in prayer at night and the one who is thirsty from fasting in the heat of the day
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliHasan
In-book reference: 47:6