Istitrad may involve moving into a related digression and then returning, whereas husn al-takhallus specifically concerns a graceful movement from preliminary material to the principal objective.
For instance, a speaker might move from a description of the season to its harvest and then to the main subject of farmers' work. A visible relation makes the transition natural; an abrupt change of subject does not.
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Conclusion: Literary Borrowing, Iqtibas, Tadmeen, and the Final Arts of Composition
Istitrad may involve moving into a related digression and then returning, whereas husn al-takhallus specifically concerns a graceful movement from preliminary material to the principal objective.
For instance, a speaker might move from a description of the season to its harvest and then to the main subject of farmers' work. A visible relation makes the transition natural; an abrupt change of subject does not.