Glossary entry (derived from question below)
Arabic term or phrase:
كيف لا
English translation:
why not / what forbids
Arabic term
United Kingdom
MA French and Arabic Translator
Native in: English 
Works in: Arabic to English, French to English
كيف لا
| 4 | why not / what forbids |
adel almergawy
|
| 5 +1 | How come not |
Ashraf Aly CertTrans-CIOL
|
| 5 | How can they not? |
Youssef Chabat
|
| 4 | the more reason |
ABDESSAMAD BINAOUI
|
Aug 18, 2020 22:43: adel almergawy Created KOG entry
Proposed translations
Egypt
legal translator
Native in: Arabic (Variants: Egyptian, Saudi )
Works in: English to Arabic, Arabic to English, Arabic, and 1 more.
why not / what forbids
United Kingdom
Accuracy and Experience----> Perfection
Native in: Arabic (Variants: Saudi , UAE, Egyptian, Jordanian, Libyan, Kuwaiti, Lebanese, Iraqi, Sudanese, Standard-Arabian (MSA), Syrian)
Works in: English to Arabic, Arabic to English, Arabic, and 1 more.
How come not
Morocco
A Ph.D. at your service!
Native in: English (Variants: US, UK) , Arabic (Variant: Moroccan) , French (Variants: Standard-France, Moroccan, African)
Works in: English to Arabic, Arabic to English, French to Arabic, and 14 more.
the more reason
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Note added at 4 mins (2020-08-13 15:05:30 GMT)
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all the more reason
Morocco
A wordsmith at your disposal
Native in: Arabic (Variant: Standard-Arabian (MSA)) 
, French (Variant: Standard-France)
Works in: French to Arabic, English to Arabic, Arabic to French, and 6 more.
Discussion
You can translate it as "How come not", or unsurprisingly, he is the prophet's grandchild