Buddha: His Life, His Doctrine, His Order by Dr. Hermann Oldenberg, Translated from the German by William Hoey, M.A., D.Lit. (Williams & Norgate, London 1882)
Page 142 (foot-note): ‘On the occasion of a prophecy of Buddha’s regarding Metteyya, the next Buddha, who will in the far future appear upon the earth, it is said: “He will be the leader of a band of disciples, numbering hundreds of thousands, as I am now the leader of bands of disciples, numbering hundreds.”— Cakkavattisuttanta.’
Page 419. ‘Regarding the wife and child of Buddha the chief passage is “Mahâvagga,” i, 54; Râhula is frequently mentioned in the Sutta texts as Buddha’s son, without any prominent rôle being ascribed to him among the circles of disciples by the ancient tradition.’
Page 103. ‘He (Buddha) says: “Râhula is born to me, a fetter has been forged for me.”
Page 103 (foot-note). ‘In the name Râhula there seems to be an allusion to Râhu, the sun and moon subduing (darkening) demon.’