O Allah, make him/her righteous and pious, and let him/her grow in a good manner — Newborn
اللَّهُمَّ اجْعَلْهُ بَارًّا تَقِيًّا وَأَنْبِتْهُ نَبَاتًا حَسَنًا
Transliteration: Allaahummaj-'alhu baarran taqiyyan wa anbithu nabaatan hasanaa
Translation: O Allah, make him/her righteous and pious, and let him/her grow in a good manner.
Reference: General supplication