[Machine] About Ash-Sha'bi, they used to say concerning the testimony of a young boy that if he testified before reaching maturity, then later he reached maturity, the testimony is valid. And the same applies to a Christian or a Jew if they testified while they were in a state of disbelief, then later they embraced Islam. And for a slave, if they testified and then were freed, their testimony is valid. Then they would affirm their testimony that their testimony is valid.  

عَنِ الشَّعْبِيِّ أَنَّهُمْ كَانُوا يَقُولُونَ فِي شَهَادَةِ الْغُلَامِ إِذَا شَهِدَ قَبْلَ أَنْ يَبْلُغَ ثُمَّ قَامَ بِهَا إِذَا بَلَغَ وَالنَّصْرَانِيِّ وَالْيَهُودِيِّ إِذَا شَهِدَا فِي حَالِ شِرْكٍ ثُمَّ أَسْلَمَا وَالْعَبْدِ إِذَا شَهِدَ ثُمَّ أُعْتِقَ ثُمَّ قَامُوا بِشَهَادَتِهِمْ أَنَّ شَهَادَتَهُمْ جَائِزَةٌ