al-ʿAllāmah Ibn al-Mibrad al-Ḥanbalī:
“And I emphasize to you, and I say: Beware, beware, beware that any harm or injury should come from you [to anyone] in whom goodness is perceived, for perhaps from him may come against you a duʿāʾ [supplication] that is answered regarding you, and you would never succeed thereafter.”
From: 🗂️ Ṣabb al-Khumūl ʿalā man Waṣala Adhāhu ilā al-Ṣāliḥīn min Awliyāʾ Allāh.