The Meaning of the Hadith: "If He Swears by Allah, He Will Fulfill It"
Machine translationRead the Arabic original
Question:
The questioner says: Your Eminence the Shaykh, regarding the hadith, "If He Swears by Allah, He Will Fulfill It," is it permissible for everyone to swear by Allah?
Answer:
If one swears for the benefit of the Muslims, hoping for Allah's help, there is no harm in it. However, leaving it off is better and more beloved, except for the slaves of Allah who swear by Allah and He does not fulfill it, and Allah does not support them, then Allah defeats them by His right. "By Allah, He will surely support His awliya (close friends of Allah)"—this is all true. "By Allah, He will surely support His army"—this is all true, because Allah has promised that. Yes.
The questioner says: Your Eminence the Shaykh, regarding the hadith, "If He Swears by Allah, He Will Fulfill It," is it permissible for everyone to swear by Allah?
Answer:
If one swears for the benefit of the Muslims, hoping for Allah's help, there is no harm in it. However, leaving it off is better and more beloved, except for the slaves of Allah who swear by Allah and He does not fulfill it, and Allah does not support them, then Allah defeats them by His right. "By Allah, He will surely support His awliya (close friends of Allah)"—this is all true. "By Allah, He will surely support His army"—this is all true, because Allah has promised that. Yes.
Source
فضل العلم وآدابه — islamhouse.com (40:50)
The Arabic text is a machine transcription of the audio recording.