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.
bukhari:4940Saʿīd b. al-Naḍr > Hushaym > Abū Bishr Jaʿfar b. Iyās > Mujāhid > Ibn ʿAbbās Latarkabun Ṭabaq > Ṭabaq Ḥāl Baʿd Ḥāl

(as regards the Verse):--'You shall surely travel from stage to stage (in this life and in the Hereafter).' (It means) from one state to another. That concerns your Prophet.  

البخاري:٤٩٤٠حَدَّثَنَا سَعِيدُ بْنُ النَّضْرِ أَخْبَرَنَا هُشَيْمٌ أَخْبَرَنَا أَبُو بِشْرٍ جَعْفَرُ بْنُ إِيَاسٍ عَنْ مُجَاهِدٍ قَالَ قَالَ ابْنُ عَبَّاسٍ {لَتَرْكَبُنَّ طَبَقًا عَنْ طَبَقٍ} حَالاً بَعْدَ حَالٍ قَالَ

هَذَا نَبِيُّكُمْ ﷺ