A man came to the Prophet ﷺ and said: Peace be upon you! He responded to his salutation. He then sat down. The Prophet ﷺ said: Ten. Another man came and said: Peace and Allah's mercy be upon you! He responded to his salutation when he sat down. He said: Twenty. Another man came and said: Peace and Allah's mercy and blessings be upon you! He responded to him and said when he sat down: and blessings be upon you! He responded to him and said when he sat down: Thirty. (Using translation from Abū Dāʾūd 5195)   

جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَقَالَ السَّلَامُ عَلَيْكُمْ فَرَدَّ عَلَيْهِ وَقَالَ «عَشْرٌ» ثُمَّ جَاءَ رَجُلٌ فَسَلَّمَ فَقَالَ السَّلَامُ عَلَيْكُمْ وَرَحْمَةُ اللَّهِ فَرَدَّ عَلَيْهِ فََقَالَ «عِشْرُونَ» ثُمَّ جَاءَ رَجُلٌ فَسَلَّمَ فَقَالَ السَّلَامُ عَلَيْكُمْ وَرَحْمَةُ اللَّهِ وَبَرَكَاتُهُ فَرَدَّ عَلَيْهِ وَقَالَ «ثَلَاثُونَ»