لَئِنْ آتَيْتَنَا صَالِحًا لَّنَكُونَنَّ مِنَ الشَّاكِرِينَ

La'in aataitanaa saalihan lanakoonanna minash-shaakireen.

If You should give us a good [child], we will surely be among the grateful.

Reference: Surah Al-A'raf 7:189