Congratulating on a birth with gratitude to Allah
Nahj al-Balāgha|Volume 1|Book 3|Chapter 354
۳۵۴. وَهَنَّأَ بِحَضْرَتِهِ عليه السلام رَجُلٌ رَجُلًا بِغُلَامٍ وُلِدَ لَهُ فَقَالَ لَهُ: لِيَهْنِئْكَ الْفَارسُ. فقال (عليه السلام) :
354. Someone congratulated another person in the presence of Amīr al-mu’minīn, peace be upon him, on the birth of a son saying: Congratulations for getting a rider of horses. Then Amīr al-mu’minin said: