Respond positively when you hear or feel God calling you in your heart; Strive hard in obeying His commands; Say the special prayer called 'talbiyah'.

This hadith speaks about the importance of responding to Allah's call and being obedient to His orders. It is narrated by Nafi', who heard it from Abdullah bin Umar. The hadith mentions a special prayer called the talbiyah which was said by Prophet Muhammad ﷺ himself. The talbiyah includes phrases such as "Labaik Allahumma Labaik" which means "I respond to Your call O Allah!" and "Innal-hamda wan-ni'mata laka wal-mulk" which means "All praise, thanks and blessings are for You". In addition, Abdullah bin Umar added his own words after the talbiyah of Prophet Muhammad ﷺ such as "Labaik Labbaika wa-sa'daik" which means "I respond to Your call and I am obedient to Your orders". This hadith teaches us that we should always be ready and willing to respond positively when we hear or feel God calling us in our hearts. We should also strive hard in obeying His commands so that He may be pleased with us.