O Allah, bless this child and make him/her among Your righteous servants. — Newborn
اللَّهُمَّ بَارِكْ فِيهِ وَاجْعَلْهُ مِنْ عِبَادِكَ الصَّالِحِينَ
Transliteration: Allaahumma baarik feehi waj'alhu min 'ibaadakas-saaliheen
Translation: O Allah, bless this child and make him/her among Your righteous servants.
Reference: General supplication