ghalib and qattal

dr.faruqi says that ghalib did not borrow from older poets:

Rather, on a number of occasions Mir has even directly translated from the old [Persian] poets. Ghalib has perhaps never done this at all.

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it could be coincidental, but there are lines in ghalib that appear to be direct translations from arabic or persian.  for example:

ghalib:

ki mere qatl ke ba'ad us ne jafaa se tauba
haay us zood pashemaN ka pashemaN hona!
after killing me, the [killer] repented from treachery;
alas! the remorse of one who quickly repents!

qattal al-kilabi:

wa lamma ra'aytu annani qad qataltuhu
nadimtu `alayhi ayya sa`ati mandami
when i saw that i had slain him
i was remorseful; alas! remorse at what an hour!