240 — ʿUmar ibn Ayyūb narrated to us, saying: Yaʿqūb ibn Ibrāhīm al-Dawraqī narrated to us, saying: Abū al-Fath Nasr ibn al-Mughīra narrated to us, saying: Sufyān ibn ʿUyayna was asked, “Does faith increase and decrease?” He replied, “Do you not read the Quran? ‘And it increased them in faith’ [Āl ʿImrān 3:173]—and likewise in more than one passage.” He was asked, “Does it decrease?” He replied, “There is nothing that increases without also decreasing.”