法苑珠林 10.36

10.36

'At that time, the Buddha told the monks: "If any of you harbour doubt in your mind that that girl who harboured anger and caused her mother to carry the heavy load for six krośas might be someone else, do not think otherwise: it was the Śākya maiden Yaśodharā. Since at that time she caused her mother to carry the heavy load along that road for six krośas, because of that karmic obstacle, she underwent immeasurable suffering within the defilements of saṃsāra; and owing to the residue of that karma, now in this life she carried the pregnancy for six years."' (There are also sūtras that say: because Rāhula in a past life blocked a rat's hole and trapped the rat for six days without letting it out, he remained in the womb for six years.)