Hadith Scan

In Tafsir al-Tabari. Vol. 11, pg. 193 - 194 it mentions Mujahid, Ibn Abbas, and Ibn Jurayj to hold the opinion that 'the near relatives' (al-Qurba) refers to the Ahl al-Bayt (as). It is also recorded that Imam Zayn al-'Abideen (as) said:

عن [أبي الديلمِ] قال: قال علىُّ بنُ الحسينِ رحمةُ اللَّهِ عليه لرجلٍ مِن أهلِ الشأْمِ: أما قرَأْتَ فى "الأنفال": ﴿وَاعْلَمُوا أَنَّمَا غَنِمْتُمْ مِنْ شَيْءٍ فَأَنَّ لِلَّهِ خُمسه وَلِلرسولِ﴾ الآيةَ؟ قال: نعم. قال: فإنكم لأنتم هم؟ قال: نعم.

[Abu al-Dilam] said: Ali ibn al-Husayn (as) said to a man from the people of Sham: "Have you not read the verse in Surah Al-Anfal {8:41}? He said: "Yes, are you from them?". He (Ali) said: "Yes."

This is also evident from the Prophet’s own actions, as he would give those tribes their khums as read in Sunan Abi Dawud 2980:

Narrated Jubair b. Mu'tim: On the day of Khaibar the Messenger of Allah (ﷺ) divided the portion to his relatives among the Banu Hashim and Banu 'Abd al-Muttalib, and omitted Banu Nawfal and Banu 'Abd Shams. So I and 'Uthman b. 'Affan went to the Prophet (ﷺ) and we said: Messenger of Allah, these are Banu Hashim whose superiority we do not deny because if the position in which Allah has placed you in relation to them ; but tell us about Banu 'Abd al-Muttalib to whom you have given something while omitting us though our relationship is the same as theirs. The Messenger of Allah (ﷺ) said: There is no distinction between us and Banu 'Abd al-Muttalib in pre-Islamic days and in Islam. We and they are one, and he (ﷺ) intertwined his fingers.