Riyad as-Salihin
A popular compilation of Quranic verses and Hadiths on virtuous conduct, piety, and manners, by Imam Nawawi.
إِنَّمَا الأَعْمَالُ بِالنِّيَّاتِ، وَإِنَّمَا لِكُلِّ امْرِئٍ مَا نَوَى، فَمَنْ كَانَتْ هِجْرَتُهُ إِلَى اللَّهِ وَرَسُولِهِ فَهِجْرَتُهُ إِلَى اللَّهِ وَرَسُولِهِ، وَمَنْ كَانَتْ هِجْرَتُهُ لِدُنْيَا يُصِيبُهَا أَوِ امْرَأَةٍ يَنْكِحُهَا فَهِجْرَتُهُ إِلَى مَا هَاجَرَ إِلَيْهِ
“Actions are only by intentions, and every person will have only what they intended. Whoever migrated to Allah and His Messenger, then his migration is to Allah and His Messenger. And whoever migrated for the sake of worldly gain or to marry a woman, then his migration is to that…”
وعن أم المؤمنين أم عبد الله عائشة رضي الله عنها قالت: قال رسول الله صلى الله عليه وسلم: "يَغْزُو جَيْشٌ الْكَعْبَةَ، فَإِذَا كَانُوا بِبَيْدَاءَ مِنَ الأَرْضِ يُخْسَفُ بِأَوَّلِهِمْ وَآخِرِهِمْ". قَالَتْ: قُلْتُ: يَا رَسُولَ اللَّهِ، كَيْفَ يُخْسَفُ بِأَوَّلِهِمْ وَآخِرِهِمْ وَفِيهِمْ أَسْوَاقُهُمْ وَمَنْ لَيْسَ مِنْهُمْ؟ قَالَ: "يُخْسَفُ بِأَوَّلِهِمْ وَآخِرِهِمْ، ثُمَّ يُبْعَثُونَ عَلَى نِيَّاتِهِمْ". (مُتَّفَقٌ عَلَيْهِ، وَهَذَا لَفْظُ الْبُخَارِيِّ)
“Aisha, Umm al-Mu'minin, may Allah be pleased with her, reported that the Messenger of Allah, peace be upon him, said: 'An army will march to attack the Ka'bah, and when they reach a barren stretch of desert land, they will all be swallowed up by the earth, the first of them and…”
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: "لا هِجْرَةَ بَعْدَ الْفَتْحِ، وَلَكِنْ جِهَادٌ وَنِيَّةٌ، وَإِذَا اسْتُنْفِرْتُمْ فَانْفِرُوا". (مُتَّفَقٌ عَلَيْهِ)
“Aisha, may Allah be pleased with her, reported that the Messenger of Allah, peace be upon him, said: 'There is no emigration (Hijrah) after the conquest of Makkah, but rather striving in Allah's cause (Jihad) and sincere intention remain; so when you are called upon to go forth…”