Ibn Umar reported: The Messenger of Allah, peace and blessings be upon him, said, “Whoever makes his concerns only one concern, the Hereafter, Allah will be enough for his concerns in the world. Whoever scatters his concerns, it does not matter to Allah in which valley of the world he meets his demise.”
Source: Shu’ab al-Imān 9857
Grade: Hasan li ghayrihi (fair due to external evidence) according to Al-Albani
عَنِ ابْنِ عُمَرَ قَالَ قَالَ رَسُولُ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَنْ جَعَلَ الْهَمَّ هَمًّا وَاحِدًا يعني الآخرة كَفَاهُ اللهُ هَمَّ دُنْيَاهُ وَمَنْ تَشَعِّبَتْهُ الْهُمُومُ لَمْ يُبَالِ اللهُ فِي أَيِّ أَوْدِيَةِ الدُّنْيَا هَلَكَ
9857 شعب الإيمان الزهد وقصر الأمل
3170 المحدث الألباني خلاصة حكم المحدث حسن لغيره في صحيح الترغيب