Luqman · Al-Ahqaf

31:14 'wa wasayna al-insana bi walidayhi' and 46:15 'wa wasayna al-insan bi walidayhi ihsana' both open with the same wasiyyah formula about parents — 46:15 adds 'ihsana' which 31:14 does not carry at that point.

An-Naml · Al-Ahqaf

Both contain the supplication: 'Lord, inspire me to thank Your favor upon me and my parents and to do righteous deeds.' 27:19 (Sulayman) ends asking to be admitted among the righteous; 46:15 (a believer at 40) adds asking for righteous offspring.

Fussilat · Al-Ahqaf

Both affirm the divine word fell upon certain people as it did on earlier nations of jinn and humans, and that they are the losers. 41:25 adds context about companions who beautified their deeds.

Al-An'am · Al-Ahqaf

Both quote a courtroom-like scene: 'is this not the truth? They say: yes, by our Lord. He says: then taste the punishment for what you used to deny'; 6:30 is at resurrection, 46:34 is directed at those who rejected the Quran.

Fatir · Al-Ahqaf

Both challenge polytheists: show what their deities created on earth or their share in the heavens. 35:40 names their 'partners' explicitly; 46:4 ends with a demand for a prior scripture or trace of knowledge.