We told Moses to stay with Us for thirty nights (in the mountains) but added ten nights more so his appointment with his Lord came to an end after forty nights. Moses had appointed his brother Aaron as his deputy among his people during his absence saying, "Try to reform them and do not follow the way of the evil-doers."
またわれはムーサーに（律法を授ける期間として）30夜を約束したが，更に10（夜）を加えた。それで主が定められた期限は40夜となった。ムーサーは，兄弟のハールーンに言った。「あなたはわたしに代って人々を統治しなさい。正しく行動し，悪を行う者の道に従ってはならない。」