Lamp

The triliteral root ṣād bā ḥā (ص ب ح) occurs in the Quran 45 times.

(24:35) God is the Light of the heavens and the earth. The example of His light is like a concave mirror within a lamp (Arab. مِصْبَاحٌ, miṣ'bāḥun), the lamp (Arab. الْمِصْبَاحُ, l-miṣ'bāḥu) is within a glass, the glass is like a radiant planet, which is lit from a blessed olive tree that is neither of the east nor of the west, olive oil nearly radiates light even if not touched by fire. Light upon light. God guides to His light those whom He pleases. God sets forth parables for mankind; God is aware of all things.

(67:5) We have adorned the lower heaven with lamps (Arab. بِمَصَابِيحَ, bimaṣābīḥa), and We made it with projectiles against the devils; and We prepared for them the retribution of the blazing fire.