(2) Knowledge
كتاب العلم
(1c) Chapter - Section 3
(1c) باب - الفصل الثالث
Mishkat al-Masabih 253 
Wathila b. al-Asqa‘ reported God’s messenger as saying, “He who seeks knowledge and attains it will have a double portion of reward, but if he does not attain it he will have a single portion of reward." Darimi transmitted it.
وَعَنْ وَاثِلَةَ بْنِ الْأَسْقَعِ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ طَلَبَ الْعِلْمَ فَأَدْرَكَهُ كَانَ لَهُ كِفْلَانِ مِنَ الْأَجْرِ فَإِنْ لَمْ يُدْرِكْهُ كَانَ لَهُ كفل من الْأجر» . رَوَاهُ الدِّرَامِي
 ضَعِيف جدا  (الألباني)حكم :
Reference : Mishkat al-Masabih 253
In-book reference : Book 2, Hadith 50