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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tabarani:11210 – Muḥammad b. ʿUthmān b. Abū Shaybah > ʿAbbād b. Ziyād al-Asadī > Yaḥyá b. al-ʿAlāʾ > ʿAlī b. ʿUrwah > ʿAmr b. Dīnār > Ibn ʿAbbās

[Machine] The patient's visit is recommended on the first day and after that it is voluntary.  

الطبراني:١١٢١٠ – حَدَّثَنَا مُحَمَّدُ بْنُ عُثْمَانَ بْنِ أَبِي شَيْبَةَ ثنا عَبَّادُ بْنُ زِيَادٍ الْأَسَدِيُّ ثنا يَحْيَى بْنُ الْعَلَاءِ عَنْ عَلِيِّ بْنِ عُرْوَةَ عَنْ عَمْرِو بْنِ دِينَارٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

«عِيَادَةُ الْمَرِيضِ أَوَّلَ يَوْمٍ سُنَّةٌ وَبَعْدَ ذَلِكَ تَطَوُّعٌ»