Surah Ta-Ha (Ta-Ha), Verse 96

قَالَ بَصُرْتُ بِمَا لَمْ یَبْصُرُوْا بِهٖ فَقَبَضْتُ قَبْضَةً مِّنْ اَثَرِ الرَّسُوْلِ فَنَبَذْتُهَا وَكَذٰلِكَ سَوَّلَتْ لِیْ نَفْسِیْ ۟

Qaala basurtu bimaa lam yabsuroo bihee faqabadtu qabdatam min asarir Rasooli fanabaztuhaa wa kazaalika sawwalat lee nafsee

“He replied: "I saw what they saw not: so I took a handful (of dust) from the footprint of the Messenger, and threw it (into the calf): thus did my soul suggest to me."”

Quran 20:96 (Yusuf Ali Translation)