This is a quotation from Śrīmad-Bhāgavatam (SB 3.2.23).
Oh, how wonderful it is! Putana, the sister of Bakasura, wanted to kill Krsna by smearing deadly poison on her breasts and having Krsna take it
Expressions researched:
"Oh, how wonderful it is! Pūtanā, the sister of Bakāsura, wanted to kill Kṛṣṇa by smearing deadly poison on her breasts and having Kṛṣṇa take it"
Sri Caitanya-caritamrta
CC Madhya-lila
Oh, how wonderful it is! Pūtanā, the sister of Bakāsura, wanted to kill Kṛṣṇa by smearing deadly poison on her breasts and having Kṛṣṇa take it. Nonetheless, Lord Kṛṣṇa accepted her as His mother, and thus she attained the destination befitting Kṛṣṇa’s mother. Of whom should I take shelter but Kṛṣṇa, who is most merciful?.
Oh, how wonderful it is! Pūtanā, the sister of Bakāsura, wanted to kill Kṛṣṇa by smearing deadly poison on her breasts and having Kṛṣṇa take it. Nonetheless, Lord Kṛṣṇa accepted her as His mother, and thus she attained the destination befitting Kṛṣṇa’s mother. Of whom should I take shelter but Kṛṣṇa, who is most merciful?