SB 10.46.28
yasoda varnyamanani
putrasya caritani ca
srnvanty asruny avasraksit
sneha-snuta-payodhara
Translation:
As mother Yasoda heard the descriptions of her son’s activities, she poured out her tears, and milk flowed from her breasts out of love.
Purport:
From the very day that Krsna had left for Mathura, mother Yasoda, though counseled and consoled by hundreds of men and women, could see nothing but the face of her son. She kept her eyes closed to everyone else and cried constantly. Thus she could not recognize Uddhava, treat him with parental affection, ask him any questions or give him any message for her son. She was simply overwhelmed with love for Krsna.