Translation
(42) Model Behavior of the Prophet (Kitab Al-Sunnah)
كتاب السنة
(1693) Chapter: Belief In Divine Decree
(17) باب فِي الْقَدَرِ
Sunan Abi Dawud 4697 

The tradition mentioned above has also been transmitted by Ibn Ya’mur, with additions and omissions, through a different chain of narrators. This version adds; He asked :

What is Islam? He replied : It means saying prayer, payment of zakat, performing HAJJ, fasting during RAMADAN, and taking a bath on account of sexual defilement.

Abu Dawud said: 'Alqamah was a Murji'i.

حَدَّثَنَا مَحْمُودُ بْنُ خَالِدٍ، حَدَّثَنَا الْفِرْيَابِيُّ، عَنْ سُفْيَانَ، قَالَ حَدَّثَنَا عَلْقَمَةُ بْنُ مَرْثَدٍ، عَنْ سُلَيْمَانَ بْنِ بُرَيْدَةَ، عَنِ ابْنِ يَعْمَرَ، بِهَذَا الْحَدِيثِ يَزِيدُ وَيَنْقُصُ قَالَ فَمَا الإِسْلاَمُ قَالَ ‏ "‏ إِقَامُ الصَّلاَةِ وَإِيتَاءُ الزَّكَاةِ وَحَجُّ الْبَيْتِ وَصَوْمُ شَهْرِ رَمَضَانَ وَالاِغْتِسَالُ مِنَ الْجَنَابَةِ ‏"‏ ‏.‏ قَالَ أَبُو دَاوُدَ عَلْقَمَةُ مُرْجِئٌ ‏.‏
Grade :  Sahih (Al-Albani) صحيح  (الألباني)حكم :
Reference : Sunan Abi Dawud 4697
In-book reference : Book 42, Hadith 102
English translation : Book 41, Hadith 4680