Dear Sir,
Please give me ISO 9001 2008 clause number for rejected material at stores.
First - Start with Clause 8.2.3
"8.2.3 Monitoring and Measurement of Processes
The organization shall apply suitable methods for monitoring and, where applicable, measurement of the quality management system processes. These methods shall demonstrate the ability of the processes to achieve planned results. When planned results are not achieved, correction and corrective action shall be taken, as appropriate."
Second if you need to get customer input or decision - go to 8.3
"8.3 Control of Nonconforming Product
The organization shall ensure that product which does not conform to product requirements is identified and controlled to prevent its unintended use or delivery. A documented procedure shall be established to define the controls and related responsibilities and authorities for dealing with nonconforming product."
third - the requirements to document a non conformance are in clause 8.5.2
"8.5.2 Corrective Action
The organization shall take action to eliminate the causes of non-conformities in order to prevent recurrence. Corrective actions shall be appropriate to the effects of the non-conformities encountered."
Finally, if during this process you improved the process or the product - take credit under 8.5.1 - Continuous Improvement.