What is the evidence for praying the voluntary prayer inside the Ka'bah?
Machine translationRead the Arabic original
Question : What is the evidence?
Answer : The evidence is what is established in the two Sahihs and others that the Messenger of Allah (peace and blessings be upon him)Jami` at-Tirmidhi 874Sahih (Darussalam) a voluntary prayer, and it is known that what is established from the Messenger of Allah (peace and blessings be upon him) is valid, so the voluntary prayer is valid.
Answer : The evidence is what is established in the two Sahihs and others that the Messenger of Allah (peace and blessings be upon him)
performed Salat in the interior of the Ka'bah
صلى في جوف الكعبة
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 759ما هو الدليل على أنه تصح...📔 الشرح الممتع على زاد المستقنع - ابن عثيمين - مشروع كبار العلماء — youtube.com
The Arabic text is a machine transcription of the audio recording.