Where can I find this narration, and is it authentic?
عن أبي هريرة قال: هجر النبي – صلى الله عليه وسلم – فهجرت، فصليت ثم جلست، فالتفت إلي النبي – صلى الله عليه وسلم – فقال: اشكنب درد؟ قلت: نعم يا رسول الله. قال: قم فصل، فإن في الصلاة شفاء
Can we say that Nabi (sallallahu’alayhi wasallam) spoke Persian based on this narration?
This Hadith is recorded by Imam Ibn Majah (rahimahullah) and Imam Ahmad (rahimahullah) with a weak chain.
(Sunan Ibn Majah, Hadith: 3458 and Musnad Ahmad, vol. 2 pg. 390 and 403)
However, Nabi (sallallahu’alayhi wasallam) is authentically reported to have uttered other words of the Persian language as well.
Refer: Sahih Bukhari, Hadith: 3070-3072, Chapter on the One who speaks in Persian or any other foreign language.
Translation of the narration in question
Sayyiduna Abu Hurayrah (radiyallahu ‘anhu) says, ‘Nabi (sallallahu ‘alayhi wasallam) came early and I also did so. I performed Salah and sat down, Nabi (sallallahu ‘alayhi wasallam) then turned to me and he said: [in Persian] Is your stomach paining?
I [Abu Hurayrah] replied, Yes O Rasulullah.
Nabi (sallallahu ‘alayhi wasallam) said, Stand and pray because in Salah there is shifa [cure].
And Allah Ta’ala Knows best,
Answered by: Moulana Muhammad Abasoomar