اَبِي بَصِيرٍ عَنْ اَبِي عَبْدِ اللهِؑ قَالَ اِنَّ اللَّهَ لَا يَدَعُ الْاَرْضَ اِلَّا وَ فِيهَا عَالِمٌ يَعْلَمُ الزِّيَادَةَ وَ النُّقْصَانَ فَاِذَا زَادَ الْمُؤْمِنُونَ شَيْئاً رَدَّهُمْ وَ اِذَا نَقَصُوا اَكْمَلَهُ لَهُمْ فَقَالَ خُذُوهُ كَامِلًا وَ لَوْ لَا ذٰلِكَ لَالْتَبَسَ عَلَى الْمُؤْمِنِينَ اَمْرُهُمْ وَ لَمْ يُفَرَّقْ بَيْنَ الْحَقِّ وَ الْبَاطِل
Abu Baseer reports from Imam Sadeq (peace be upon him) who said, “Surely, Allah does not leave the earth except that there is in it a scholar (here implying an infallible Imam), who knows the excess and deficiency. When the believers add anything (to religion), he returns it and when they fall short, he completes it.” Thereafter, he (peace be upon him) continued, “Take the religion completely. Had it not been so, their affair (religion) would have been confused for the believers and truth could not have been distinguished with falsehood.”
Here, the word ‘believers’ has been used; it is not talking about the addition or deduction of the innovators, hypocrites, disbelievers, etc. Another important thing is that Imam (peace be upon him) is advising us to take religion in its entirety, which implies total and absolute submission.
1. Behaar al-Anwaar, vol. 23, p. 21, H. 19
2. Elal al-Sharaae’, vol. 1, p. 195, Chapter 153, H. 4
3. Sa’d al-Sa’ood, p. 52
4. Dalaael al-Imaamah, p. 232