Prayers and Meditations — Paragraph 193
Source (Arabic)
أَيْ رَبِّ احْفَظْ عِبادَكَ وَإِمَائَكَ عَنْ رَمْيِ الظُّنُونِ وَالأَوْهامِ ثُمَّ أَشْرِبْهُمْ سَلْسَبِيلَ عِرْفانِكَ بِأَيادِي فَضْلِكَ،
Translation
Keep safe Thy servants and Thy handmaidens, O my Lord, from the darts of idle fancy and vain imaginings, and give them from the hands of Thy grace a draught of the soft-flowing waters of Thy knowledge.