What is the ruling on acting upon the statement of a trusted non-Muslim?
Machine translationRead the Arabic original
The questioner : Is it permissible to act upon the statement of a non-Muslim if we trust his word? Is there any evidence indicating this?
The Shaykh : There is the story of the Messenger of Allah (peace and blessings be upon him) during the Hijrah, when he hired a guide who was not a Muslim. The situation did not require that there be a request from Quraysh regarding the camel, but rather their knowledge. The evidence is that the Messenger hired a polytheist man to show him the way during the journey of the Hijrah, even though the matter was very serious.
The Shaykh : There is the story of the Messenger of Allah (peace and blessings be upon him) during the Hijrah, when he hired a guide who was not a Muslim. The situation did not require that there be a request from Quraysh regarding the camel, but rather their knowledge. The evidence is that the Messenger hired a polytheist man to show him the way during the journey of the Hijrah, even though the matter was very serious.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 3789دليل أنه يجوز أن يعمل بقول غير المسلم إذا وثقنا...؟📔 الشرح الممتع على زاد المستقنع - ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.