Salih bin Ali al-Hashimi narrates from his father, from his grandfather, from the Prophet (peace and blessings be upon him) that he said: "For one of you to raise a puppy after one hundred and fifty-four (154) would be better for him than raising a child of his own loins."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10639