It is narrated from Sayyiduna Wathilah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Eat gourd, for it increases the brain; and eat lentils ('adas), for they have been blessed on the tongues of seventy prophets."
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18372