The Book of the Sunnah
كتاب المقدمة
(10) Chapter: Regarding the Divine Decree (Qadr)
(10) باب فِي الْقَدَرِ
Sunan Ibn Majah 91 
It was narrated that Suraqah bin Ju'shum said:
"I said: 'O Messenger of Allah (ﷺ), is one's deed in that which has already dried of the Pen and what has passed of the Divine Decree, or is it in the future?' He said: 'No, it is in that which he already dried of the Pen and what has passed of the Divine Decree, and each person is facilitated for what he has been created.'"
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا عَطَاءُ بْنُ مُسْلِمٍ الْخَفَّافُ، حَدَّثَنَا الأَعْمَشُ، عَنْ مُجَاهِدٍ، عَنْ سُرَاقَةَ بْنِ جُعْشُمٍ، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ الْعَمَلُ فِيمَا جَفَّ بِهِ الْقَلَمُ وَجَرَتْ بِهِ الْمَقَادِيرُ أَوْ فِي أَمْرٍ مُسْتَقْبَلٍ قَالَ ‏ "‏ بَلْ فِيمَا جَفَّ بِهِ الْقَلَمُ وَجَرَتْ بِهِ الْمَقَادِيرُ وَكُلٌّ مُيَسَّرٌ لِمَا خُلِقَ لَهُ ‏"‏ ‏.‏
Grade :  Sahih (Darussalam)
Reference : Sunan Ibn Majah 91
In-book reference : Introduction, Hadith 91
English translation : Vol. 1, Book 1, Hadith 91