once
رَبِّ لَا تَذَرْنِي فَرْدًا وَأَنتَ خَيْرُ الْوَارِثِينَ
Meaning
«My Lord, do not leave me alone [with no heir], while You are the best of inheritors»
Source and references
21:89The reference is copied from the edition; separate editorial verification is not complete yet.
Source edition: Supplications from the Quran. Open source ↗