Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:940And Hb b. Saʿīd > Shuʿayb > al-Awzāʿī > ʿAṭāʾ

[Machine] Ibn Abbas used to say, "For every two prayers, there is a washing, and for the morning prayer, there is a special washing."  

الدارمي:٩٤٠أَخْبَرَنَا وَهْبُ بْنُ سَعِيدٍ عَنْ شُعَيْبٍ حَدَّثَنَا الْأَوْزَاعِيُّ أَخْبَرَنِي عَطَاءٌ

أَنَّ ابْنَ عَبَّاسٍ كَانَ يَقُولُ «لِكُلِّ صَلَاتَيْنِ اغْتِسَالَةٌ وَتُفْرِدُ لِصَلَاةِ الصُّبْحِ اغْتِسَالَةً»