The Book of Virtue, Good Manners and Joining of the Ties of Relationship (Kitab Al-Birr was-Salat-I-wa'l-Adab)
Muslim :: Book 32 : Hadith 6364
Malik reported Allah's Messenger (may peace be upon him) as saying: He, who brought up two girls properly till they grew up, he and I would come (together) (very closely) on the Day of Resurrection, and he interlaced his fingers (for explaining the point of nearness between him and that person).