The Long Āgama Sūtra 26.59

26.59

時，婆悉咤、頗羅墮二人俱白佛言：「且置餘論，我聞沙門瞿曇明識梵道，能為人說，又與梵天相見往來言語，唯願沙門瞿曇以慈愍故，說梵天道，開示演布。」

Both Vāsiṣṭha and Bhāradvāja then said to the Buddha, “Setting aside other discussions, we’ve heard that the ascetic Gautama is clearly aware of the way to Brahmā and explains it for others, and he relates how he sees them reborn with Brahmā. Please let the ascetic Gautama discuss the way to Brahmā out of compassion for us. Make it a plain and detailed explanation!”