Nanda Maharaja and Yasoda are accepted as the father and mother of Krsna, yet Mother Yasoda was more fortunate than Nanda Maharaja, Krsna's father, because Nanda Maharaja was sometimes separated from Krsna whereas Yasoda, Krsna's mother, was not separated from Krsna at any moment. From Krsna's babyhood to His childhood and from His childhood to His youth, Mother Yasoda was always in association with Krsna. Even when Krsna was grown up, He would go to Vrndavana and sit on the lap of Mother Yasoda. Therefore there is no comparison to the fortune of Mother Yasoda.
(From Srila Prabhupada's purport to SB 10.8.46)