Allamah Hafiz Jalaalud Deen Suyuti answers this question with evidences from the Sunnah in this risalah of his: بزوغ الهلال في الخصال الموجبة للظلال.
One file is a manuscript of the work while the other is in a typed out format.
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بزوغ الهلال في الخصال الموجبة للظلال
The typed out version has typos and missing ebaraat, which can be rectified by the manuscript. Unfortunately the manuscript is blurry.
Caution: Many of the narrations are weak, some are extremely weak and there are even a few israeliyaat.