Could you reference the narration?
A person came to Nabi (sallallahu ‘alayhi wa sallam) and said, “I have committed a sin, how can I repent?’ Nabi (sallallahu ‘alayhi wa sallam) said, ‘Is your mother alive?’ He replied, ‘She has passed on.’ Rasulullah (sallallahu ‘alayhi wa sallam) said, ‘Is your khalah (maternal aunt) alive?’ When he replied in the affirmative, Nabi (sallallahu ‘alayhi wa sallam) said, ‘ Go and be kind to her.’
Answer
Imam Tirmidhi (rahimahullah) has recorded this narration on the authority of Sayyiduna ‘Abdullah ibn ‘Umar (radiyallahu ‘anhuma).
(Sunan Tirmidhi, Hadith: 1904)
Also see here.
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar
Checked by: Moulana Haroon Abasoomar