Prayers and Meditations — Paragraph 432
Source (Arabic)
بِهِ قُلُوبُهُمْ وَتَسْكُنُ نُفُوسُهُمْ وَتُجَدَّدُ أَرْواحُهُمْ وَتُطَيَّبُ أَجْسَادُهُمْ، إِنَّكَ أَنْتَ مَوْليهُمْ وَمَوْلَى العالَمِينَ وَالْحَمْدُ
Translation
Send down, then, upon them that which will assure their hearts, and quiet their souls, and renew their spirits, and refresh their bodies. Thou art, verily, their Lord and the Lord of the worlds.