The Sutta Nipāta 1026 (P.303) mentions about 3 vedas only.
His age is a hundred and twenty years, by clan he is a Bāvarī, upon his body appear three signs, Three Vedas he has mastered all.
We should remember that that Gautama, the Buddha took birth in a Hindu family only. He studied the prevalent literature , observed the prevalent customs and practices , got vexed with the degraded form of spiritual aspects in his times, adopted his own method and finally reached the stage SAT, which Veda described in RV 1.164.46.
Can we infer that by the time Gautama, the Buddha got SELF REALISATION, there were only 3 Vedas? If so, when was the 4th Veda,ie., Atharva Veda added to the list?
Does the statement of Buddha - His age is a hundred and twenty years - indicate the normal life span of a humans, as 120 years, at that point of time?
No, the question Why are Vedas often referred to as “three Vedas” instead of four? Why is Atharva Veda excluded from this list?, does not contain a reference to sayings to Gautama, a Hindu Prince and who attained SELF REALISATION, at a later date. Hence, this question of mine is not a duplicate. Further, the answers thereto do not satisfy me.