The Verb دَخَلَ (Dakhala) — Preposition Rules
Summary: Whether دَخَلَ takes a direct object or requires فِي depends on whether the place being entered is physically enterable or not.
The Rule
| Situation | Construction | Example |
|---|---|---|
| Physical place (can literally enter) | Direct object — no preposition | دَخَلْتُ البَيْتَ — I entered the house |
| Abstract concept (no physical space) | فِي required | يَدْخُلِ الإِيمَانُ فِي قُلُوبِكُمْ — faith enters your hearts |
| A place not designed for entry | فِي required | أَدْخَلْتُ يَدِي فِي جَيْبِي — I put my hand in my pocket |
Quranic Examples
Physical → no preposition:
دَخَلَ مَعَهُ السِّجْنَ فَتَيَانِ (Surah Yūsuf)
"Two young men entered the prison with him." — السِّجْن is a physical, enterable place.
Abstract → فِي:
وَلَمَّا يَدْخُلِ الإِيمَانُ فِي قُلُوبِكُمْ (Surah Al-Hujuraat 49:14)
"...for faith has not yet entered your hearts." — The heart is not a physical container one walks into.
Place not designed for entry → فِي:
وَأَدْخِلْ يَدَكَ فِي جَيْبِكَ (Surah Al-Naml)
"Insert your hand into the opening of your robe."
On جَيْب
In Classical Arabic, جَيْب means the chest opening of a garment, not "pocket" (the modern sense). The miracle of Mūsā involved inserting his hand into the chest opening of his robe, which emerged radiant white.
Abstract grouping → فِي:
ادْخُلِي فِي عِبَادِي (Surah Al-Fajr)
"Enter among My servants."
Physical Jannah → no preposition:
وَادْخُلِي جَنَّتِي (Surah Al-Fajr)
"And enter My Paradise." — Jannah is a real, physical place.
The Broader Principle
Prepositions in Arabic often determine or shift a verb's meaning. A related example:
- عَلَّمَهُ شَيْئًا = taught him something (direct object)
- عَلَّمَهُ بِشَيْءٍ = informed him of something (بِ shifts the meaning entirely)
The preposition is not ornamental — it is part of the verb's meaning.