«لَا طَالِبًا عِلْمًا مَلُومٌ» = No seeker of knowledge is blameworthy.
ṭāliban: accusative quasi-construct noun of lā.
ʿilman: accusative object governed by the active participle ṭāliban.
malūmun: nominative predicate of lā.
ʿIlman is not a genitive muḍāf ilayh; the active participle governs it. This is an added teaching example.