O Allah, let him/her grow beautifully and make him/her dutiful and God-fearing. — Newborn
اللَّهُمَّ أَنْبِتْهُ نَبَاتًا حَسَنًا وَاجْعَلْهُ بَارًّا تَقِيًّا
Transliteration: Allaahumma anbithu nabaatan hasanan waj'alhu baarran taqiyyaa
Translation: O Allah, let him/her grow beautifully and make him/her dutiful and God-fearing.
Reference: General supplication