Mukhtasar Bukhari

Narrated Ibn Abbas (may Allah be pleased with them) that the Prophet (peace and blessings of Allah be upon him) said to Jibreel (peace be upon him): "Why do you not come to us more often than you do?" Ibn Abbas (may Allah be pleased with them) said: Then this verse was revealed: "And we (angels) do not descend except by the command of your Lord. To Him belongs whatever is before us and whatever is behind us." (Surah Maryam: 64)