أما الاقتباس فهو أن يضمن الكلام نظما كان أو نثرا شيئا من القرآن أو الحديث، لا على أنه منه
Iqtibās consists of including something from the Qur'an or Hadith in verse or prose, not as an explicit quotation identified as coming from that source.
Yuḍammina al-kalām means incorporating wording into one's composition. Nazman kāna aw nathran includes both poetry and prose. The final qualification excludes the straightforward act of introducing the passage as a formal citation.
The incorporation may be short; reproducing a whole verse or narration is not a requirement.