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Which meaning and category are taught for تَصْدِيقٌ?

Quran Vocabulary Words 2326–2350

• confirmation; affirming as true — Masculine verbal noun (Form II)
• to know one another; recognize mutually — Past-tense verb (Form VI)
• eternity; everlasting life — Masculine noun
• to ask for information — Past-tense verb (Form X)