"My Lord, make me an establisher of prayer, and from my descendants," meaning: and make from my descendants those who establish prayer.
﴿رَبِّ اجْعَلْنِي مُقِيمَ الصَّلاةِ وَمِنْ ذريتي﴾ أَيْ: وَاجْعَلْ مِنْ ذُرِّيَّتِي مَنْ يُقيم الصَّلَاة.